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Finding the Fourth Proportional to 177,325.76, 265,910.52 and 66,440

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Solution

The fourth proportional to 177,325.76, 265,910.52 and 66,440 is: 99,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,325.76 : 265,910.52 = 66,440 : x
  2. Step 2: Convert to fraction form
    177,325.76/265,910.52 = 66,440/x
  3. Step 3: Cross multiply
    177,325.76x = 265,910.52 × 66,440
  4. Step 4: Simplify right side
    177,325.76x = 17,667,094,948.80
  5. Step 5: Solve for x
    x = 17,667,094,948.80/177,325.76
  6. Step 6: Final answer
    x = 99,630.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.